School districts in Washington
49% of the 600 populated ZIP Code areas in Washington are served by more than one school district — 296 of them, which puts the state 27th among the fifty-two. It is organized into 295 unified districts, the largest being Seattle at 368,631 homes. Its most divided ZIP Code area, 98532, is split between 7 districts for elementary grades alone. The two districts that share the most ZIP Codes here are Puyallup and Franklin Pierce, in 5 of them. Counted by homes rather than by ZIP Code area, 61% of the state's housing sits in a ZIP Code that more than one district serves.
How many school districts are in Washington?
295: the Census boundary file draws 295 school districts in Washington that reach at least one ZIP Code area with homes, 295 unified, 0 elementary and 0 secondary. A ZIP Code here can sit in more than one of them, which is why a school district lookup by ZIP Code for Washington lists them all: find your school district by ZIP code.
How often a ZIP Code here crosses a district line
The state is close to the national rate of 53%. Every count below comes from the census blocks in each ZIP Code area rather than from any published table; Seattle is the largest district in it, at 368,631 homes.
- ZIP Code areas with a district600
- Served by more than one district296 (49%)
- Grade school and high school differ0 (0%)
- No high school district named0
- Unified districts295
- Elementary districts0
- Secondary districts0
- Homes in no district at all0
District pages for Washington, largest first
Seattle is the largest of them by far: at 368,631 homes it holds at least 5 times as many as Kent, second on this list with 65,070. It reaches 34 ZIP Code areas, and the areas it covers alone are counted on its own page rather than assumed from its size.
- Seattle Public Schools368,631 homes · 34 ZIP areas
- Kent School District65,070 homes · 12 ZIP areas
- Evergreen School District (Clark)60,653 homes · 8 ZIP areas
- Puyallup School District53,888 homes · 9 ZIP areas
- Snohomish School District21,206 homes · 6 ZIP areas
- Cheney School District16,678 homes · 11 ZIP areas
The most divided ZIP Code area in Washington
ZIP Code area 98532 holds 10,118 homes and 7 districts take a real share of them for the early grades, but Chehalis holds 63% on its own at that level. This is the shape that makes a single-name lookup look right: it names Chehalis and describes most of the homes here, and silently not the rest.
Each percentage here is a share of the 10,118 homes counted in ZIP Code 98532, not the chance that any one address is in that district. Enrollment follows the street: two houses on opposite sides of the same road can be in different districts, and only the district office can say which.
Every track below is 35 cells long and stands for all 10,118 homes counted in ZIP Code 98532, so one cell is 289 homes, rounded to the nearest whole cell. Cells lit solid are the homes one district holds, and the unlit cells are the homes held by the other districts in the same list.
- Chehalis School District6,329 of 10,118 homes63%
- Adna School District1,526 of 10,118 homes15%
- Napavine School District1,370 of 10,118 homes14%
- Pe Ell School District310 of 10,118 homes3.1%
- Onalaska School District252 of 10,118 homes2.5%
- Boistfort School District243 of 10,118 homes2.4%
- Centralia School District61 of 10,118 homes0.6%
One further district reaches into this area and holds 27 homes in it, under half a percent of the homes named at this level.
For grade school, an answer of one district name would be wrong for 3,789 of the 10,118 here.
How much of Washington a single district name misses
Across the 600 ZIP Code areas in Washington with homes in them, an answer of one district name misses 333,128 of the 3,202,260 homes they hold — 10% of the state. In 265 of those areas the largest district for the early grades holds every home counted; in the other 335 it leaves some out. That is a different count from the 296 areas served by more than one district: it also counts districts under half a percent of the homes and homes in no district, and it does not count a high school district that differs.
In ZIP Code 98012 · Mill Creek, Washington the largest district for grade school is Everett, and naming it alone misses 11,403 of the 27,984 homes counted there. For grade school the rest is 11,318 homes with Northshore and Edmonds; 85 homes in a district too small to name here.
In ZIP Code 98133 · Shoreline, Washington the largest district for grade school is Seattle, and naming it alone misses 10,251 of the 23,778 homes counted there. For grade school the rest is 10,251 homes with Shoreline.
In ZIP Code 99208 · Spokane, Washington the largest district for grade school is Spokane, and naming it alone misses 9,159 of the 23,881 homes counted there. For grade school the rest is 9,123 homes with Mead and 36 homes in a district too small to name here.
Where a ZIP Code here names more than one district
Of the 600 ZIP Code areas in Washington that the federal file names a district for, 296 name more than one school district. These are the 12 with the most, starting at 7 districts in one postal area: Chehalis, Sisco Heights and Mount Vernon. Each row opens the full answer for that ZIP Code, with every district named for grade school and for high school and the share of the homes each one holds.
- ZIP Code 98532 · Chehalis, Washington7 districts · 10,118 homes
- ZIP Code 98223 · Sisco Heights, Washington6 districts · 17,458 homes
- ZIP Code 98273 · Mount Vernon, Washington5 districts · 11,816 homes
- ZIP Code 98541 · Malone, Washington5 districts · 4,531 homes
- ZIP Code 98584 · Skokomish, Washington5 districts · 16,978 homes
- ZIP Code 98596 · Winlock, Washington5 districts · 2,780 homes
- ZIP Code 98935 · Grandview, Washington5 districts · 1,165 homes
- ZIP Code 99122 · Davenport, Washington5 districts · 2,264 homes
- ZIP Code 99170 · Rosalia, Washington5 districts · 502 homes
- ZIP Code 99217 · Spokane, Washington5 districts · 7,812 homes
- ZIP Code 99224 · Spokane, Washington5 districts · 10,328 homes
- ZIP Code 98077 · Cottage Lake, Washington4 districts · 4,716 homes
What to do next
Ask the district office to confirm your street address: look on its site for a school locator, a find my school tool or an attendance zone map, or call the office.
A ZIP Code is a set of mail delivery routes, not a boundary: 296 of the 600 ZIP Code areas in Washington with a district named for them are served by more than one school district, and the line between two of them runs along streets. Only the district can say which side of that line an address is on.
District websites and phone numbers here come from the NCES Common Core of Data directory, 2024-25 school year, filed under the same district ID as the Census boundary files. Where it lists no usable website, none is printed rather than guessed.
If a house purchase depends on the answer, ask the district itself for written confirmation of that exact address. A listing is not a district record, and neither is this page.
Where these numbers come from
The homes were counted in the 2020 Census and the district lines are the 2026 boundary file, so a fast-growing area may have changed since; ZIP Codes here are the Census Bureau's ZIP Code Tabulation Areas; a share is a share of homes, not the chance that one address is in a district; and a district is not a school attendance zone. Every source, file and caveat is on the method page.